class AWS::EC2::NetworkInterfaceCollection

def _each_item options = {}, &block
  resp = filtered_request(:describe_network_interfaces, options, &block)
  resp.network_interface_set.each do |n|
    network_interface = NetworkInterface.new_from(
      :describe_network_interfaces, n,
      n.network_interface_id, :config => config)
    yield(network_interface)
  end
end